Silver iodide

Description

Silver iodide is identified by CAS 7783-96-2, molecular formula AgI and molecular weight 233.81 g/mol. UNII 81M6Z3D1XE; InChIKey MSFPLIAKTHOCQP-UHFFFAOYSA-M. Boiling Point: 1506 °C; Melting Point: 552 °C; Density: 5.67.

Identification

CAS Registry Number	7783-96-2
PubChem CID	24563
Molecular formula	AgI
Molecular weight	233.81 g/mol
IUPAC name	iodosilver
InChIKey	MSFPLIAKTHOCQP-UHFFFAOYSA-M
UNII (FDA)	81M6Z3D1XE

Computed Descriptors

Molecular Weight	234.773
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	0
Exact Mass	233.80956
Monoisotopic Mass	233.80956
Topological Polar Surface Area	0
Heavy Atom Count	2
Formal Charge	0
Complexity	2

Physical & Chemical Properties

Boiling Point	1506 °C
Melting Point	552 °C
Density	5.67
Vapor Pressure	1 MM HG @ 820 °C

Physical description & handling notes

• Light yellow odorless solid; Gradually darkened by light; [Merck Index] Insoluble in water (28X10-7 g/l at 25 deg C); [HSDB]
• Light yellow, powder; crystals are hexagonal or cubic
• Odorless
• Tasteless
• Sol in hydriodic acid, /aqueous solutions of/ potassium iodide, sodium chloride, potassium cyanide, ammonium hydroxide, and sodium thiosulfate.
• Sol in concn soln of alkali bromides, chlorides, thiocyanates, thiosulfates, mercuric and silver nitrates

Regulatory Status

GHS notification summary	4.2% (2 / 48)

GHS Hazard Classification

GHS notification summary	4.2% (2 / 48)
Reported hazard statements	H400 (16.7%), H410 (95.8%), H360, H362, H372

Documented Uses

• Used in photography, cloud seeding (making artificial rain), local anti-infectives, and veterinary local antiseptics for mucous membranes; [HSDB]
• Using Disinfectants or Biocides [Category: Clean]
• Photographic Processing [Category: Other]
• Photography; laboratory reagent; cloud seeding for artificial rainmaking
• CHEM INT FOR SILVER TETRAIODOMERCURATE
• Silver iodide is used in photography, as an antiseptic in medicine, and in rainmaking. (L820)

Synonyms

Silver Iodide; 7783-96-2; Neosiluol; Silver monoiodide; Silver iodide (AgI); Neosilvol; Silver(1+) iodide; Colloidal silver iodide; DTXSID0064836; RefChem:58374; DTXCID7048039; 232-038-0; 81M6Z3D1XE; Argentum Iodatum; MFCD00003412; Iodure d'argent

Frequently Asked Questions

What are the CAS number and molecular formula of Silver iodide?

CAS 7783-96-2; molecular formula AgI; molecular weight 233.81 g/mol.

What other names is Silver iodide known by?

Silver Iodide, 7783-96-2, Neosiluol, Silver monoiodide, Silver iodide (AgI), Neosilvol.

Is Silver iodide classified as hazardous?

4.2% of GHS notifications report no hazard classification (2 of 48).

What are the key physical properties of Silver iodide?

Boiling Point: 1506 °C; Melting Point: 552 °C; Density: 5.67; Vapor Pressure: 1 MM HG @ 820 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.